It was pointed out that recent roles have seen McAvoy playing a bald characters, to which he responded: “I'm very smooth a lot of the time,” before suggesting that the hair (on his head) is beginning to recede.

But there were, of course, more interesting matters to be dealt with… like his pubes. Host of the show Graham Norton asked the question many wouldn't: “How old were you when you used your grandfather's razor?”

Something tells me he had some inside info.

Instead of brushing over it like the majority of us would, to save ourselves from any form of humiliation, McAvoy ran with it and actually addressed his granddad in the audience. Which would be super cute, had he not been talking about shaving his balls and that.

The looks on the other guests' faces say it all:

McAvoy was spilling the beans next to a bewildered Sarah Paulson and Richard E. Grant. Credit: BBC/The Graham Norton Show

And his grandparents came a close second on the reaction-o-meter:

James McAvoy's grandparents in the audience of The Graham Norton Show. Credit: BBC/The Graham Norton Show

And off he went, explaining: “I think I might have been about 12 or 13. No, I was younger than that, I was getting pubes.”

He added: “I basically got enough of them that I thought, 'I don't know if I want this for my future.' So, I was bored one day and I saw my granddad's razor and I thought, 'I'll have a bang at that.'

“I started shaving them off, I did it badly and I stopped quickly and I cut myself a little bit.”

At which point, rather bizarrely, Sarah Paulson chimes in: “Yeah, you were bleeding.” Was she there?

McAvoy continued: “So I got some tissue, and I dabbed it and there was blood on it, I chucked it in the toilet, cleaned everything up and went up the stairs.”

His grandparents then shouted him to go downstairs, before asking whether he was ok, repeatedly – turned out they had seen blood in the toilet and on his granddad's razor.

Busted.

Worried about his well-being, they asked to see his wrists, coming to the conclusion he had been attempting to self-harm – which was the point McAvoy had to tell them he was shaving his balls.

Rebecca Shepherd

Rebecca Shepherd is a Journalist at LADbible. She graduated from the University of Central Lancashire with a First Class BA in Journalism. Becky previously worked as Chief Reporter at Cavendish Press, supplying news and feature stories to national newspapers and women's magazines.